Potential and kinnetic Energy

Definitons from: www.dictionary.com
Potential Energy

"Potential Energy is the energy of a body or a system with respect to the position of the body or the arrangem ent of the particles of the system." (Not moving, storing energy, gettingready to move)

Kinetic Energy

"Kinetic Energy is the energy of a body or a system with respect to the motion of the body or of the particles in the system." (Moving, result of Potential Energy). PICTURE:

enrgy.pngTHE DIFFERENCE: Notice how the ball with potential energy is saving energy, not moving while the ball with kinnetic energy has been released and it is moving.

Kinetic vs. Potential

"Kinetic and potential energies are found in all objects. If an object is moving, it is said to have kinetic energy (KE). Potential energy (PE) is energy that is "stored" because of the position and/or arrangement of the object. The classic example of potential energy is to pick up a brick. When it's on the ground, the brick had a certain amount of energy. When you pick it up, you apply force and lift the object. You did work. That work added energy to the brick. Once the brick is in a higher/new position, we would say that the increased energy was stored in the brick as PE. Now the brick can do something it couldn't do before; it can fall. And in falling, can exert forces and do work on other objects."
energy.jpgCAUSE AND EFFECT: Notice how when the boy pulls the arrow back with the string he is gaining energy and storing it by holding on to it, this is called POTENTIAL ENERGY; but when the boy lets go off the arrow and the string, he is releasing energy and the arrow is moving now, this is called KINETIC ENERGY.

Here is a link to a relly good website that talks about Potential and Kinnetic Energy - this website helped me to understand the concept of Kinetic and Potential energy, I would suggest that you go on it :)

http://www.physics4kids.com/files/motion_energy.html

Chemical Energy

Definitions from - Dictionary.com (link at the top of the wiki)
Chemical Energy:That part of the energy in a substance that can be released by a chemical reaction.
Here are some pictures that demonstrate Chemical Energy
chemical.gifdigestion2.gif WHY? The apple that the boy just consumed contains chemical energy.
Here is a link to a good chemical energy website that is very detailed and easy to understand : http://fhm.fhsd.k12.mo.us/jhughes/Hughes/Units/EnergyChemical.htm


Thermal Energy

Definitions from- www.ask.com
Thermal Energy: Thermal energy is the movement of atoms and molecules in a substance that causes heat. It is generated and measured by any kind of heat (sun, water, volcanoes, etc.)
Information about Thermal Energy from - http://scienceprojectideasforkids.com/2010/heat-transfer-conduction/
Conduction (or heat conduction) is the transfer of thermal energy between neighboring molecules in a substance due to differences in temperature.
Thermal energy is always transferred from a region of higher temperature to a region of lower temperature. PICTURE



Model for Heat Conduction
Model for Heat Conduction
external image images?q=tbn:ANd9GcTaQHkIoYQ3ZQUqvrwOurggpTQY6hqtG749NtIq0QS9A3zGjggpDH-XijOjIQheattransfer.jpg

Electrical Energy

Definition from: Dicitonary.com
Electrical Energy: Energy made available by the flow of electric charge through a conductor; "they built a car that runs on electricity".
electricityflow.pngelectric.jpg